CN117328797A - Pile foundation collapse prevention perforating device for pile foundation construction - Google Patents
Pile foundation collapse prevention perforating device for pile foundation construction Download PDFInfo
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- CN117328797A CN117328797A CN202311631461.4A CN202311631461A CN117328797A CN 117328797 A CN117328797 A CN 117328797A CN 202311631461 A CN202311631461 A CN 202311631461A CN 117328797 A CN117328797 A CN 117328797A
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000004080 punching Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 13
- 239000002689 soil Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the field of pile foundation construction and discloses a pile foundation collapse prevention perforating device for pile foundation construction, which comprises an outer frame, wherein two groups of vertical corresponding transverse displacement mechanisms are arranged on the outer frame, guide pipes are arranged on one sides, close to each other, of the two groups of vertical corresponding transverse displacement mechanisms, a drill bit assembly is arranged in each guide pipe, the drill bit assembly sequentially penetrates through the vertical two transverse displacement mechanisms from top to bottom, when the device is needed to be used, the drill bit assembly is connected to driving equipment, the outer frame is moved to a position needing to be drilled, the driving equipment drives the drill bit assembly to punch holes, the two guide pipes are added to limit the drilling positions, and the inclination of the drilling positions is prevented.
Description
Technical Field
The invention relates to the field of pile foundation construction, in particular to a pile foundation collapse prevention perforating device for pile foundation construction.
Background
The pile foundation is a deep foundation consisting of piles and pile caps (called caps for short) connected with the tops of the piles or a single pile foundation connected with the piles by the piles. If the pile body is buried in the soil, the bottom surface of the bearing platform is contacted with the soil, the pile body is called a low bearing platform pile foundation; if the pile body upper part exposes the ground and the pile cap bottom is positioned above the ground, the pile foundation is called as a high pile cap pile foundation, and the pile foundation construction needs to be perforated and then poured in the construction process, but if the soil is soft in the perforation process, after the perforation is finished, the inner wall of the hole can fall off to cause collapse after the drill bit is taken out, so that the pile foundation collapse prevention perforating device for the pile foundation construction is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pile foundation collapse prevention perforating device for pile foundation construction, which solves the problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a perforating device of pile foundation collapse prevention for pile foundation construction, includes two sets of outer frames that correspond about, is provided with two sets of horizontal displacement mechanisms that correspond from top to bottom on the outer frame, and two sets of horizontal displacement mechanisms that correspond from top to bottom all are provided with the stand pipe in one side that is close to each other, the inside of stand pipe is provided with the drill bit subassembly, and the drill bit subassembly passes two horizontal displacement mechanisms from top to bottom in proper order.
The drill bit assembly comprises a drill bit, a vertical shaft and a plurality of groups of connecting joints, wherein the plurality of groups of connecting joints are arranged between the vertical shaft and the drill bit, each connecting joint comprises a cylindrical shell, an expansion assembly and a connecting flange, the connecting flanges are arranged at the upper end and the lower end of the outer side of the cylindrical shell, the expansion assembly is arranged inside the cylindrical shell, the upper cylindrical shell and the lower cylindrical shell are connected through the connecting flange, and the cylindrical shell is connected with the corresponding vertical shaft and the drill bit through the connecting flange.
The expansion assembly comprises two groups of telescopic structures, two groups of connecting platforms, hinge rods and expansion plates, the telescopic structures are respectively arranged at the upper end and the lower end of the cylindrical shell in a mirror image mode, the connecting platforms are fixedly installed on the telescopic ends of the telescopic structures, the hinge assemblies are fixedly installed on the connecting platforms and the expansion plates, the hinge rods are respectively hinged with the hinge assemblies on the connecting platforms and the expansion plates, rectangular grooves are formed in positions, corresponding to the expansion plates, of the cylindrical shell, and the expansion plates are arranged inside the rectangular grooves.
Preferably, the front sides of the two groups of outer frames and the rear sides of the two groups of outer frames are fixedly provided with two transverse connecting rods which correspond up and down, the transverse displacement mechanism is arranged between the two corresponding transverse connecting rods, and the middle part of the outer frames is fixedly connected with two side connecting rods.
Preferably, the transverse displacement mechanism comprises a displacement platform, a screw rod and a first driving motor, the displacement platform is arranged between the two corresponding transverse connecting rods, the first driving motor is fixedly installed on the side surface of the outer frame corresponding to the position of the displacement platform, a threaded hole is formed in the displacement platform, the screw rod is connected with the internal thread of the threaded hole, one end of the screw rod corresponding to an output shaft of the driving motor is fixedly connected with the screw rod, the other end of the screw rod penetrates through the outer frame, a rotating base is fixedly installed at one end of the screw rod penetrating through the outer frame, a guide pipe is fixedly installed on the displacement platform, a circular hole is formed in the position of the displacement platform corresponding to the guide pipe, and the drill bit component penetrates through the guide pipe and the circular hole.
Preferably, the telescopic structure comprises a cylinder protecting shell and a linear cylinder, wherein the linear cylinder is arranged in the cylindrical shell, the cylinder protecting shell and the linear cylinder are fixedly connected with the inner wall of the cylindrical shell, an output shaft of the linear cylinder penetrates through the cylinder protecting shell and extends to the outer side of the cylinder protecting shell, and an output shaft of the linear cylinder is fixedly connected with the connecting platform.
Preferably, the back fixed mounting of outer frame has the connecting plate, the outside of connecting plate is provided with the mount plate, the mount plate is connected with the bearing equipment on the carrier, the upper and lower both sides of mount plate are provided with the bar arch, reserve the screw hole on the bar arch, rectangular groove has been seted up to one side of mount plate corresponding to the connecting plate, and the connecting plate joint is provided with motor assembly on the mount plate in the inside of rectangular groove.
Preferably, the motor assembly comprises a second driving motor and a gear, the second driving motor is fixedly arranged at the top of the mounting plate, an output shaft of the second driving motor extends to the inside of the rectangular groove, a tooth groove is formed in the connecting plate, the gear is fixedly arranged on the output shaft of the second driving motor, the position of the gear corresponds to the position of the tooth groove, one side of the gear extends to the inside of the tooth groove, and the gear is meshed with the tooth groove.
Preferably, the inner walls of the upper side and the lower side of the rectangular groove are respectively provided with a connecting transverse groove, the connecting plate is fixedly provided with a clamping bulge at the position corresponding to the connecting transverse groove, and the clamping bulge and the connecting transverse groove are in sliding clamping connection.
Compared with the prior art, the invention provides the pile foundation collapse prevention perforating device for pile foundation construction, which has the following beneficial effects:
1. the pile foundation collapse prevention perforating device for pile foundation construction comprises a drill bit assembly, wherein when the drill bit assembly is perforated, the drill bit assembly is drilled into a standard depth, the drill bit assembly is required to be tamped from inside to outside and then poured, so that after the drilling is finished, the drill bit assembly is left in a hole, a telescopic structure is started, the telescopic structure drives two connecting platforms to move towards one side close to each other, then an expansion plate expands towards the inner wall of a drilled hole under the linkage of a hinging rod, the inner wall of the drilled hole is compacted, then a driving device is started, the drill bit assembly is enabled to rotate, then the telescopic structure is contracted, the expansion plate is enabled to reset, after the drill bit assembly rotates, the drill bit assembly expands outwards again, the drill bit assembly is tamped at different positions, then the drill bit assembly moves upwards under the driving of the driving device, the drill bit assembly stops expanding and tamping every time when the cylindrical shell is lifted upwards, and then the driving device drives the drill bit assembly to rotate again until the inner wall of the drilled hole is completely tamped, and collapse prevention of the drilled hole is achieved.
2. According to the pile foundation collapse prevention perforating device for pile foundation construction, the motor assembly drives the connecting plate to transversely displace, so that the whole external frame is driven to transversely displace, and long-distance transverse adjustment is realized.
3. When the external frame is moved to a specific drilling position, and transverse fine adjustment is needed, as the whole equipment is borne by the bearing vehicle, the linear motion of the vehicle is simpler, but the direction needs to be adjusted back and forth when the vehicle is transversely displaced, so that the driving equipment drives the transverse displacement by the portal frame on the bearing vehicle, then the driving motor I is started, and the driving motor I drives the screw rod to rotate, so that the displacement platform is driven to transversely displace, the drilling position of the drill bit assembly is transversely limited, and transverse adjustment is carried out.
4. This perforating device of pile foundation collapse prevention for pile foundation construction through passing through flange joint with multiunit cylindrical shell, can increase the quantity of cylindrical shell in real time according to actual drilling degree of depth, uses more nimble, and simultaneously if one of them cylindrical shell takes place to damage can carry out real-time change, can influence the progress of engineering as little as possible.
5. When the device is needed to be used, the drill bit assembly is connected to the driving equipment, the external frame is moved to a position where drilling is needed, the driving equipment drives the drill bit assembly to drill holes, and the two guide pipes are added to limit the positions of the holes to prevent the inclination of the holes.
Drawings
FIG. 1 is a front perspective view of the present invention;
FIG. 2 is a bottom perspective view of the present invention;
FIG. 3 is a schematic side perspective view of the present invention;
FIG. 4 is a schematic bottom view of the present invention;
FIG. 5 is a schematic cross-sectional view A-A of FIG. 4;
FIG. 6 is an enlarged schematic view of a portion of FIG. 5;
FIG. 7 is an enlarged schematic view of a portion of the portion B of FIG. 5;
FIG. 8 is a schematic cross-sectional view of the present invention;
fig. 9 is a partially enlarged schematic view at C in fig. 8.
In the figure: 1. an outer frame; 2. a guide tube; 3. a connecting joint; 4. a transverse link; 5. a drill bit; 6. a displacement platform; 7. a threaded hole; 8. a screw; 9. driving a first motor; 10. a side connecting rod; 11. a second driving motor; 12. a connecting plate; 13. a mounting plate; 14. a gear; 15. tooth slots; 16. connecting the transverse grooves; 17. the clamping bulge; 18. a cylindrical housing; 19. a cylinder protective housing; 20. a straight line cylinder; 21. a connecting platform; 22. a hinge rod; 23. rectangular grooves; 24. an expansion plate; 25. and a vertical axis.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: the utility model provides a perforating device of pile foundation collapse prevention for pile foundation construction, including two sets of outer frame 1 that correspond about, be provided with two sets of horizontal displacement mechanisms that correspond from top to bottom on the outer frame 1, the one side that two sets of horizontal displacement mechanisms correspond from top to bottom are all provided with stand pipe 2 that are close to each other, stand pipe 2's inside is provided with the drill bit subassembly, the drill bit subassembly from the top down passes two horizontal displacement mechanisms from top to bottom in proper order, when needs use this device, be connected the drill bit subassembly on the actuating device, remove outer frame 1 to the position that needs the drilling, actuating device drives the drill bit subassembly and punches, limit the drilling position through having increased two stand pipes 2, prevent that the position slope of punching.
Further, the front sides of the two groups of outer frames 1 and the rear sides of the two groups of outer frames 1 are fixedly provided with two transverse connecting rods 4 which correspond to each other up and down, the transverse displacement mechanism is arranged between the two corresponding transverse connecting rods 4, and the middle part of the outer frame 1 is fixedly connected with two side connecting rods 10.
Further, the transverse displacement mechanism includes displacement platform 6, screw rod 8 and driving motor 9, displacement platform 6 sets up between two corresponding transverse connecting rods 4, and fixed mounting has two driving motor 9 on the side of outer frame 1 corresponds displacement platform 6's the position, threaded hole 7 has been seted up on the displacement platform 6, threaded hole 7's inside threaded connection has screw rod 8, screw rod 8 corresponds driving motor 9 one end of output shaft and rather than fixed connection together, and the other end of screw rod 8 runs through outer frame 1, screw rod 8 runs through the one end fixed mounting of outer frame 1 and rotates the base, fixed mounting has stand pipe 2 on the displacement platform 6, circular hole has been seted up on the position that displacement platform 6 corresponds to stand pipe 2, drill bit subassembly passes stand pipe 2 and circular hole, when moving outer frame 1 to specific boring hole position, because holistic equipment is born by the carrier vehicle, but when transverse displacement, the direction of need make a round trip adjustment, therefore driving equipment drives transverse displacement by the portal frame on the carrier vehicle earlier, then start driving motor 9, driving motor 9 drive the screw rod 8 and rotating the position of the horizontal displacement, thereby the drill bit subassembly is carried out transverse displacement, the lateral displacement is limited.
Embodiment two: when punching operation is carried out in a region with softer geology, the structure is as follows:
further, the drill bit subassembly includes drill bit 5, vertical axis 25 and multiunit attach fitting 3, multiunit attach fitting 3 sets up between vertical axis 25 and drill bit 5, attach fitting 3 includes cylindrical shell 18, expansion assembly and flange, flange sets up the upper and lower both ends in the cylindrical shell 18 outside, expansion assembly sets up the inside at cylindrical shell 18, pass through flange connection between two cylindrical shells 18 that correspond from top to bottom, and cylindrical shell 18 passes through flange connection with corresponding vertical axis 25 and drill bit 5, through passing through flange connection with multiunit cylindrical shell 18, can increase the quantity of cylindrical shell 18 in real time according to actual drilling depth, it is more nimble to use, if one of them cylindrical shell 18 takes place to damage and can carry out real-time change simultaneously, can be as few as possible influence the progress of engineering.
Further, the expansion assembly includes extending structure, connecting platform 21, articulated rod 22 and expansion board 24, extending structure has two sets of, and two sets of extending structure mirror image setting respectively at the upper and lower both ends of cylindrical shell 18, connecting platform 21 is fixed mounting on extending structure's the flexible end, connecting platform 21 and expansion board 24 are last all fixed mounting to have the articulated assembly, articulated rod 22 is articulated with connecting platform 21 and the articulated assembly on expansion board 24 respectively, rectangular slot 23 has been seted up on the position of cylindrical shell 18 corresponding to expansion board 24, expansion board 24 sets up in rectangular slot 23's inside, when the drill bit subassembly is perforated, after boring to standard degree of depth, because geology is comparatively soft, consequently need tamp from inside to outside, pour afterwards, consequently, after drilling finishes, the drill bit subassembly stays in the inside of hole, then start extending structure, extending structure drives two connecting platform 21 to one side that are close to each other, then expansion board 24 is under the linkage of articulated rod 22, the inner wall expansion of drilling, carry out compaction to the inner wall of drilling, then the actuating device starts, make the drill bit subassembly rotatory, then, make the expansion board 24 correspond to the position of expansion board, after the expansion board is made to the expansion board is driven to the expansion device is again, the expansion device is fully to the expansion board is not fully to the expansion device is driven to the inner wall of the expansion board is fully, the expansion device is driven to the expansion device is fully after the expansion board is driven to the expansion device is fully is rotated, and the expansion device is fully driven down, and the length is fully is moved down, and the expansion device is fully is completely by the expansion device is completely down after the expansion device is completely down.
Further, the telescopic structure comprises a cylinder protection shell 19 and a linear cylinder 20, the linear cylinder 20 is arranged in the cylindrical shell 18, the cylinder protection shell 19 and the linear cylinder 20 are fixedly connected with the inner wall of the cylindrical shell 18, an output shaft of the linear cylinder 20 penetrates through the cylinder protection shell 19 to extend to the outer side of the cylinder protection shell 19, and an output shaft of the linear cylinder 20 is fixedly connected with the connecting platform 21.
Embodiment III: on the basis of the first embodiment and the second embodiment, when the lateral position of the outer frame 1 needs to be adjusted laterally for a long distance:
further, the back fixed mounting of external frame 1 has connecting plate 12, the outside of connecting plate 12 is provided with mount plate 13, mount plate 13 is connected with the bearing equipment on the carrier, the upper and lower both sides of mount plate 13 are provided with the bar arch, reserve the screw hole on the bar arch, rectangular groove has been seted up to one side of mount plate 13 corresponding to connecting plate 12, connecting plate 12 joint is in rectangular groove's inside, be provided with motor element on the mount plate 13, carry out lateral displacement through motor element drive connecting plate 12, thereby drive whole external frame 1 and carry out lateral displacement, thereby realize long distance lateral adjustment.
Further, the motor assembly includes driving motor two 11 and gear 14, driving motor two 11 fixed mounting is in the top of mount plate 13, the output shaft of driving motor two 11 extends to the inside of rectangle recess, set up tooth's socket 15 on the connecting plate 12, fixed mounting has gear 14 on the output shaft of driving motor two 11, the position of gear 14 corresponds with the position of tooth's socket 15, one side of gear 14 extends to the inside of tooth's socket 15, gear 14 meshes with tooth's socket 15, when needs carry out long distance lateral displacement, driving motor two 11 starts, drive gear 14 rotation, because gear 14 and tooth's socket 15 meshing's relation, and mount plate 13 is installed on the bearing equipment, be fixed, consequently can drive connecting plate 12 and outer frame 1 and carry out lateral displacement, after the lateral displacement adjustment, have the elevating system on the carrier again and put outer frame 1 down.
Further, the inner walls of the upper side and the lower side of the rectangular groove are respectively provided with a connecting transverse groove 16, the connecting plate 12 is fixedly provided with a clamping protrusion 17 at the position corresponding to the connecting transverse groove 16, and the clamping protrusions 17 are in sliding clamping connection with the connecting transverse grooves 16.
The device is transported by the carrier vehicle, the carrier vehicle is provided with driving equipment and a lifting structure for driving the drill bit assembly to rotate, the lifting structure is connected with the mounting plate 13, the driving equipment is connected with the drill bit assembly, and the carrier vehicle, the driving equipment and the lifting structure are all of the existing structure and are not described in detail herein.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Pile foundation collapse prevention perforating device for pile foundation construction, including two sets of corresponding outer frame (1), its characterized in that about: two groups of vertical corresponding transverse displacement mechanisms are arranged on the outer frame (1), guide pipes (2) are arranged on the sides, close to each other, of the two groups of vertical corresponding transverse displacement mechanisms, drill bit components are arranged in the guide pipes (2), and the drill bit components sequentially penetrate through the upper transverse displacement mechanism and the lower transverse displacement mechanism from top to bottom;
the drill bit assembly comprises a drill bit (5), a vertical shaft (25) and a plurality of groups of connecting joints (3), wherein the groups of connecting joints (3) are arranged between the vertical shaft (25) and the drill bit (5), the connecting joints (3) comprise a cylindrical shell (18), expansion assemblies and connecting flanges, the connecting flanges are arranged at the upper end and the lower end of the outer side of the cylindrical shell (18), the expansion assemblies are arranged in the cylindrical shell (18), the upper cylindrical shell (18) and the lower cylindrical shell (18) are connected through the connecting flanges, and the cylindrical shell (18) is connected with the corresponding vertical shaft (25) and the drill bit (5) through the connecting flanges;
the expansion assembly comprises a telescopic structure, a connecting platform (21), a hinging rod (22) and an expansion plate (24), wherein the telescopic structure is provided with two groups, the two groups of telescopic structures are respectively arranged at the upper end and the lower end of the cylindrical shell (18) in a mirror image mode, the connecting platform (21) is fixedly installed at the telescopic end of the telescopic structure, the hinging assembly is fixedly installed on the connecting platform (21) and the expansion plate (24), the hinging rod (22) is hinged with the hinging assembly on the connecting platform (21) and the expansion plate (24) respectively, the cylindrical shell (18) is provided with a rectangular groove (23) corresponding to the position of the expansion plate (24), and the expansion plate (24) is arranged inside the rectangular groove (23).
2. The hole punching device for pile foundation collapse prevention for pile foundation construction according to claim 1, wherein: the horizontal displacement mechanism comprises a displacement platform (6), a screw rod (8) and a first driving motor (9), wherein the displacement platform (6) is arranged between the two corresponding horizontal connecting rods (4), the two first driving motors (9) are fixedly arranged on the side faces of the outer frame (1) corresponding to the positions of the displacement platform (6), threaded holes (7) are formed in the displacement platform (6), the screw rod (8) is connected with the screw rod (8) in a threaded manner, one end of the screw rod (8) corresponding to the output shaft of the first driving motor (9) is fixedly connected with the screw rod, the other end of the screw rod (8) penetrates through the outer frame (1), a rotating base is fixedly arranged at one end of the screw rod (8) penetrating through the outer frame (1), a guide pipe (2) is fixedly arranged on the displacement platform (6), round holes are formed in the positions of the displacement platform (6) corresponding to the guide pipe (2), and the drill bit assembly penetrates through the guide pipe (2) and the round holes.
3. The hole punching device for pile foundation collapse prevention for pile foundation construction according to claim 1, wherein: the telescopic structure comprises a cylinder protection shell (19) and a linear cylinder (20), wherein the linear cylinder (20) is arranged inside the cylindrical shell (18), the cylinder protection shell (19) and the linear cylinder (20) are fixedly connected with the inner wall of the cylindrical shell (18), an output shaft of the linear cylinder (20) penetrates through the cylinder protection shell (19) to extend to the outer side of the cylinder protection shell (19), and an output shaft of the linear cylinder (20) is fixedly connected with a connecting platform (21).
4. The hole punching device for pile foundation collapse prevention for pile foundation construction according to claim 1, wherein: the back fixed mounting of external frame (1) has connecting plate (12), the outside of connecting plate (12) is provided with mount plate (13), mount plate (13) are connected with the bearing equipment on the carrier, the upper and lower both sides of mount plate (13) are provided with the bar arch, reserve the screw hole on the bar arch, rectangular groove has been seted up to one side of mount plate (13) corresponding to connecting plate (12), and inside at rectangular groove is provided with motor assembly on mount plate (13) to connecting plate (12) joint.
5. The hole punching device for preventing collapse of pile foundation for pile foundation construction according to claim 4, wherein: the motor assembly comprises a driving motor II (11) and a gear (14), the driving motor II (11) is fixedly arranged at the top of the mounting plate (13), an output shaft of the driving motor II (11) extends to the inside of the rectangular groove, a tooth groove (15) is formed in the connecting plate (12), the gear (14) is fixedly arranged on the output shaft of the driving motor II (11), the position of the gear (14) corresponds to the position of the tooth groove (15), one side of the gear (14) extends to the inside of the tooth groove (15), and the gear (14) is meshed with the tooth groove (15).
6. The hole punching device for pile foundation collapse prevention for pile foundation construction of claim 5, wherein: the inner walls of the upper side and the lower side of the rectangular groove are respectively provided with a connecting transverse groove (16), clamping bulges (17) are fixedly arranged at positions of the connecting plates (12) corresponding to the connecting transverse grooves (16), and the clamping bulges (17) are in sliding clamping connection with the connecting transverse grooves (16).
7. The hole punching device for pile foundation collapse prevention for pile foundation construction according to claim 1, wherein: the front sides of the two groups of outer frames (1) and the rear sides of the two groups of outer frames (1) are fixedly provided with two transverse connecting rods (4) which vertically correspond, the transverse displacement mechanism is arranged between the two corresponding transverse connecting rods (4), and the middle part of the outer frame (1) is fixedly connected with two side connecting rods (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311631461.4A CN117328797B (en) | 2023-12-01 | 2023-12-01 | Pile foundation collapse prevention perforating device for pile foundation construction |
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| CN202311631461.4A CN117328797B (en) | 2023-12-01 | 2023-12-01 | Pile foundation collapse prevention perforating device for pile foundation construction |
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